package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;
import com.sky.exception.BaseException;
import com.sky.mapper.LoginMapper;
import com.sky.properties.WeChatProperties;
import com.sky.service.LoginService;
import com.sky.utils.HttpClientUtil;
import com.sky.vo.UserLoginVO;
import io.swagger.util.Json;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.Map;

@Service
public class LoginServiceImpl implements LoginService {

    public static final String WX_LOGIN = "https://api.weixin.qq.com/sns/jscode2session";
    @Autowired
    private LoginMapper loginMapper;
    @Autowired
    private WeChatProperties weChatProperties;


    @Override
    public User login(UserLoginDTO userLoginDTO) {
        Map<String, String> map = new HashMap<>();
        map.put("appid", weChatProperties.getAppid());
        map.put("secret", weChatProperties.getSecret());
        map.put("js_code", userLoginDTO.getCode());
        map.put("grant_type", "authorization_code");
        String json = HttpClientUtil.doGet(WX_LOGIN, map);
        JSONObject jsonObject = JSON.parseObject(json);
        String openid = jsonObject.getString("openid");
        //判空
        if (openid == null) {
            throw new BaseException("微信登录失败.......");
        }
        //判断当前用户是否为新用户
        User user = loginMapper.getByOpenid(openid);
        if (user == null) {
            user = new User();
            user.setOpenid(openid);
            user.setCreateTime(LocalDateTime.now());
            loginMapper.insert(user);
        }
        return user;
    }
}
